Related Experiment Video
Updated: Dec 19, 2025

Fabrication of Carbon-Based Ionic Electromechanically Active Soft Actuators
Published on: April 25, 2020
Reprogrammable Ferromagnetic Domains for Reconfigurable Soft Magnetic Actuators
Hyeonseo Song1, Hajun Lee1, Jaebyeong Lee1
1School of Materials Science and Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, South Korea.
Researchers developed a novel soft magnetic composite with reprogrammable magnetization profiles. This material allows for rewriting magnetic behavior by realigning embedded particles, enabling diverse actuator applications.
Area of Science:
- Materials Science
- Polymer Science
- Magnetism
Background:
- Soft magnetic materials offer advantages like fast response and remote actuation.
- Existing materials often require altering intrinsic properties for different magnetic behaviors.
Purpose of the Study:
- To introduce a new soft magnetic composite material.
- To demonstrate a method for reprogramming magnetization profiles without changing material composition.
Main Methods:
- Fabrication of magnetic microspheres with ferromagnetic microparticles encapsulated in oligomeric-PEG.
- Utilizing the phase transition of the encapsulating polymer to control particle alignment.
- Developing magnetic actuators with reprogrammable magnetization.
Main Results:
- A novel soft magnetic composite material was successfully synthesized.
- The magnetization profile of the composite was effectively reprogrammed by physically realigning magnetic particles.
- Demonstrated the ability to rewrite complex magnetization profiles.
Conclusions:
- The developed soft magnetic composite offers a unique approach to tunable magnetic properties.
- This material enables the creation of versatile magnetic actuators with adaptable functionalities.
More Related Videos
09:43Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement
Published on: November 7, 2017
08:17An Additive Manufacturing Technique for the Facile and Rapid Fabrication of Hydrogel-based Micromachines with Magnetically Responsive Components
Published on: July 18, 2018
Related Concept Videos
Ferromagnetism
Force On A Current Loop In A Magnetic Field
Magnetic Damping
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...
Magnetic Field Of A Current Loop
Torque On A Current Loop In A Magnetic Field
Consider a rectangular current-carrying loop containing N turns of wire, placed in a uniform magnetic field. The net force on a current-carrying loop...